import router from './router'
import NProgress from 'nprogress'
import { Message } from 'element-ui'
import 'nprogress/nprogress.css' // progress bar style
import { PrevLoading } from '@/utils/loading.js'
import { getToken } from '@/utils/jsCookie' // get token from cookie
import { Session } from '@/utils/storage'
import store from './store'

NProgress.configure({ showSpinner: false })
const whiteList = ['/login', '/auth-redirect'] // no redirect whitelist

// 自定义 加载 loading
PrevLoading.start()

// 路由加载前
router.beforeEach(async(to, from, next) => {
  // determine whether the user has logged in
  const hasToken = getToken()
  const UsreInfo = Session.get('userInfo')
  if (hasToken && UsreInfo) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.start()
    } else {
      // determine whether the user has obtained his permission roles through getInfo
      const hasRoles = store.getters.roles && store.getters.roles.length > 0
      if (hasRoles) {
        next()
      } else {
        try {
          // get user info
          // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
          const { roles } = await store.dispatch('userInfos/getRoles')
          // generatePersonal accessible routes map based on roles
          const accessRoutes = await store.dispatch('permission/generateRoutes', roles)
          // dynamically add accessible routes
          router.addRoutes(accessRoutes)

          // hack method to ensure that addRoutes is complete
          // set the replace: true, so the navigation will not leave a history record
          next({ ...to, replace: true })
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch('userInfos/resetToken')
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1 || !store.state.themeConfig.themeConfig.isConnect) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

// 路由加载后
router.afterEach(() => {
  PrevLoading.done()
  delayNProgressDone()
})

// 延迟关闭进度条
export function delayNProgressDone(time = 300) {
  setTimeout(() => {
    NProgress.done()
  }, time)
}
